Home / 13,617.91-20,399.53-9,927.96

Finding the Fourth Proportional to 13,617.91, 20,399.53 and 9,927.96

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Solution

The fourth proportional to 13,617.91, 20,399.53 and 9,927.96 is: 14,872.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.91 : 20,399.53 = 9,927.96 : x
  2. Step 2: Convert to fraction form
    13,617.91/20,399.53 = 9,927.96/x
  3. Step 3: Cross multiply
    13,617.91x = 20,399.53 × 9,927.96
  4. Step 4: Simplify right side
    13,617.91x = 202,525,717.86
  5. Step 5: Solve for x
    x = 202,525,717.86/13,617.91
  6. Step 6: Final answer
    x = 14,872.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.